High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist? - Home Energy Pros2015-08-02T23:16:02Zhttp://homeenergypros.lbl.gov/forum/topics/high-density-foam-any-incidents-of-cracking-in-frame-walls-as?xg_source=activity&feed=yes&xn_auth=noShawna foam pulling away from…tag:homeenergypros.lbl.gov,2014-07-31:6069565:Comment:1629442014-07-31T13:49:40.152ZRichard Beyerhttp://homeenergypros.lbl.gov/profile/RichardBeyer
<p>Shawna foam pulling away from the studs due to over application will cause spontaneous combustion or core burn. A poor mix will cause splitting of the foam and noxcious odors. See...</p>
<p><a href="http://masonknowles.com/docs/troubleshooting_sprayfoam_insulation_jlc2010sept.pdf">http://masonknowles.com/docs/troubleshooting_sprayfoam_insulation_jlc2010sept.pdf</a></p>
<p>and…</p>
<p></p>
<p>Shawna foam pulling away from the studs due to over application will cause spontaneous combustion or core burn. A poor mix will cause splitting of the foam and noxcious odors. See...</p>
<p><a href="http://masonknowles.com/docs/troubleshooting_sprayfoam_insulation_jlc2010sept.pdf">http://masonknowles.com/docs/troubleshooting_sprayfoam_insulation_jlc2010sept.pdf</a></p>
<p>and</p>
<p><a href="https://www.osha.gov/dte/grant_materials/fy10/sh-21003-10/manual.pdf">https://www.osha.gov/dte/grant_materials/fy10/sh-21003-10/manual.pdf</a></p>
<p> </p>
<p></p> Well if budget dictates one u…tag:homeenergypros.lbl.gov,2014-04-11:6069565:Comment:1543422014-04-11T13:55:03.645ZSean Lintow Srhttp://homeenergypros.lbl.gov/profile/sls
<p>Well if budget dictates one uses wet / green wood, said budget had better dictate drying time as no product should be installed until everything is dried out</p>
<p>The issue isn't the product, it is improper application</p>
<p>Well if budget dictates one uses wet / green wood, said budget had better dictate drying time as no product should be installed until everything is dried out</p>
<p>The issue isn't the product, it is improper application</p> ...apart from installation is…tag:homeenergypros.lbl.gov,2014-04-09:6069565:Comment:1540602014-04-09T17:17:47.053ZShawna Hendersonhttp://homeenergypros.lbl.gov/profile/ShawnaHenderson
<p>...apart from installation issues, I mean. Have asked a few questions of one Net Zero builder who is using high-density foam and he pointed to installation QA/QC problems with +2" layers being sprayed, or layers are being sprayed without enough setting time between them if pulling and cracking are issues. He noted one incidence where a crap installation at the rim joists left gaps of 1 to 1.5 inches!</p>
<p>He didn't see much of an issue with air barrier being compromised, because spray foam…</p>
<p>...apart from installation issues, I mean. Have asked a few questions of one Net Zero builder who is using high-density foam and he pointed to installation QA/QC problems with +2" layers being sprayed, or layers are being sprayed without enough setting time between them if pulling and cracking are issues. He noted one incidence where a crap installation at the rim joists left gaps of 1 to 1.5 inches!</p>
<p>He didn't see much of an issue with air barrier being compromised, because spray foam would be in contact with sheathing and that is stable. I have a few phone calls with other Net Zero/Low Energy builders this week that are unrelated to this topic, but I know they have experience with high density foam, so I'll ask some more questions and report back on what I find.</p>